Generation gap (noun); a difference of attitudes between people of different generations, leading to a lack of understanding.
It’s natural that two people of different major age groups have difference in their ways, whether it be their Moral Spirit, Aptitude, Reaction, Attitude, Calm and almost every aspect of one’s personality, though there weren’t enough of repercussions of generation gap as serious as are nowadays, So this term was never of much importance as it’s now.